问题 解答题
能简算的简算.
(125+11)×863×102-63×2
25×2867×67+33×67
125×32×2599×32
(750-690)÷5+88[218-(312-210)]×3.
答案

(1)(125+11)×8

=125×8+11×8

=1000+88

=1088

(2)63×102-63×2

=63×(102-2)

=63×100

=6300

(2)25×28

=25×4×7

=100×7

=700

(4)67×67+33×67

=67×(67+33)

=67×100

=6700

(5)125×32×25

=125×8×4×25

=(125×8)×(4×25)

=1000×100

=100000

(6)99×32

=(100-1)×32

=100×32-32

=3200-32

=3168

(7)(750-690)÷5+88

=60÷5+88

=12+88

=100

(8)[218-(312-210)]×3

=[218-102]×3

=116×3

=348

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